- Bat Conservation Trust
- British Hedgehog Preservation Society
- Hedgehog Helpline
- Mammal Society
- RSPB
- Wildfowl and Wetland Trust
- Born Free Foundation
- Care for the Wild International
- The David Shepherd Wildlife Foundation
- The Gerald Durrell Wildlife Preservation Trust
- Fauna & Flora International
- Save the Rhino International
- Whale And Dolphin Conservation Society
- Wildlife Vets International
- Wildlifeline
- World Land Trust
- Worldwide Veterinary Service
- World Society For The Protection Of Animals
- WWF-UK
- Wildlife Trusts